I started a similar thread a while back and didn't have much luck. Whatever documentation exists isn't being shared. I see any PPC card project needing 3 basic peices... schematics, RoHS replacement parts and bios. All 3 needed for success.
I think Oliver (coldfire project) has a good idea to replace the CPU in an 030 card with a coldfire. It would have code compatibility issues and won't run OS4 but would still be a neat new toy for an old Amiga. Coldfire Aros even...
Plaz